18793078760

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1\times {\mathrm{2423}}^1$

素因数の和:4530

約数の個数: 64

約数和(自身を含む): 42759360000

約数和(自身を除く): 23966281240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 1999, 2423, 3880, 3998, 4846, 7996, 9692, 9995, 12115, 15992, 19384, 19990, 24230, 39980, 48460, 79960, 96920, 193903, 235031, 387806, 470062, 775612, 940124, 969515, 1175155, 1551224, 1880248, 1939030, 2350310, 3878060, 4700620, 4843577, 7756120, 9401240, 9687154, 19374308, 24217885, 38748616, 48435770, 96871540, 193743080, 469826969, 939653938, 1879307876, 2349134845, 3758615752, 4698269690, 9396539380, 18793078760]

約数ペア:

[(1, 18793078760), (2, 9396539380), (4, 4698269690), (5, 3758615752), (8, 2349134845), (10, 1879307876), (20, 939653938), (40, 469826969), (97, 193743080), (194, 96871540), (388, 48435770), (485, 38748616), (776, 24217885), (970, 19374308), (1940, 9687154), (1999, 9401240), (2423, 7756120), (3880, 4843577), (3998, 4700620), (4846, 3878060), (7996, 2350310), (9692, 1939030), (9995, 1880248), (12115, 1551224), (15992, 1175155), (19384, 969515), (19990, 940124), (24230, 775612), (39980, 470062), (48460, 387806), (79960, 235031), (96920, 193903)]